80286993 has 24 divisors (see below), whose sum is σ = 123851520. Its totient is φ = 50006880.

The previous prime is 80286991. The next prime is 80287007. The reversal of 80286993 is 39968208.

It is not a de Polignac number, because 80286993 - 2¹ = 80286991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80286991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3130 + ... + 13052.

It is an arithmetic number, because the mean of its divisors is an integer number (5160480).

Almost surely, 2^80286993 is an apocalyptic number.

It is an amenable number.

80286993 is a deficient number, since it is larger than the sum of its proper divisors (43564527).

80286993 is a wasteful number, since it uses less digits than its factorization.

80286993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9989 (or 9986 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 80286993 is about 8960.3009436067. The cubic root of 80286993 is about 431.4015794815.

The spelling of 80286993 in words is "eighty million, two hundred eighty-six thousand, nine hundred ninety-three".